I installed the latest version of JRE 7 and the tool on oracle site found the update 51 installed. But in the java control panel it says update 17.
And the real problem is that i need to add an exception in security rules
In particular i need to do the procedure in the link. But i cant in my java control panel.
You could try the java removal tool to check for and remove any old versions:
For the exception you could try to put it in the deployment.properties file: